지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 1,276 - 1,281 (6page)
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초록· 키워드
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This paper proposes a novel control strategy for smooth transition between stand-alone and gridconnected modes of distributed generation (DG). The proposed control scheme is designed in stationary (α-β) reference frame consisted of outer grid current control loop using a proportional resonant (PR) controller and the inner load voltage control loop developed with a repetitive controller (RC). The proposed control strategy is able to produce a sinusoidal load voltage in stand-alone mode and a sinusoidal grid current in grid-connected operation of the DG despite the presence of nonlinear local load. One unified control scheme is developed for both stand-alone and gridconnected operations so that the DG does not need to change control scheme and voltage or current spikes can be effectively prevented during transition period. Since the control system is developed in the α-β reference frame, coordinate transformations are not required, which can significantly reduce the complexity and improve the accuracy of the DG control system. The feasibility of the proposed method is validated through selected simulated and experimental results.
목차
Abstract
I. INTRODUCTION
II. SYSTEM CONFIGURATION AND PROPOSED CONTROL STRATEGY
III. SIMULATION RESULTS
IV. EXPERIMENTAL RESULTS
REFERENCES
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